基于DSP和FPGA双CPU架构的导航微机系统

为了满足惯性系统的小型化发展,设计了一种体积小、功耗低、价位低的高性能导航微机系统。此导航微机系统由TI公司数字信号处理器芯片TMS320C6726和Altera公司的FPGA芯片EP3C10E144A7两种CPU组成,DSP主要负责导航数据处理和算法运算,FPGA主要负责惯性测量单元(IMU)的数据采集和接口控制。该微机系统充分利用了TMS320C6726的运算速度快、浮点数据处理能力强和FPGA的SOPC技术的特点,通过VHDL语言编程实现双口RAM接口完成双CPU的快速数据通信。两种CPU能分别发挥自身优势,协调地工作,提高了导航计算机的运行效率。

The design and implementation of navigation computer with dual CPU based on DSP and FPGA processor

In order to meet the development of the inertial system , a new kind of navigation computer with the char-acteristics of small size , low power , low cost and high performance was presented in this paper .The navigation computer system is made up of digital signal processor （ DSP ） chip TMS320C6726 from TI company and FPGA chip EP3C10E144A7 from Altera company.DSP is mainly responsible for the navigation calculation and data pro-cessing, and FPGA is mainly responsible for inertial measurement unit （IMU） data acquisition and interface con-trol.The microcomputer system takes advantages of fast processing speed and strong float point data processing ca -pability of TMS320C6726 and SOPC technology of FPGA .The dual-CPU can quickly transmit data through double-port RAM which is achieved by VHDL language .The operating efficiency of the navigation computer is improved .